Home / 5,454.03-8,180.99-1,991.25

Finding the Fourth Proportional to 5,454.03, 8,180.99 and 1,991.25

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Solution

The fourth proportional to 5,454.03, 8,180.99 and 1,991.25 is: 2,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.03 : 8,180.99 = 1,991.25 : x
  2. Step 2: Convert to fraction form
    5,454.03/8,180.99 = 1,991.25/x
  3. Step 3: Cross multiply
    5,454.03x = 8,180.99 × 1,991.25
  4. Step 4: Simplify right side
    5,454.03x = 16,290,386.38
  5. Step 5: Solve for x
    x = 16,290,386.38/5,454.03
  6. Step 6: Final answer
    x = 2,986.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.